Iím looking for people with experience in having changed from cable pull valves to electric valves. If you have changed or had someone change them how well have they worked for you? I would like to know about those that came with the electric valves from the factory. What if and problems have you had? Have you had and power failures where you had to use the manual release, how hard was it? From my last post, Iím aware of the different brands so thatís not my problem. The valves are for the most part the same just the way the cables are routed is different and I know on my Sierra thereís not a lot of room some of the electric valves. So, thanks for your help.